Centretown Observatory:

Baro. Pressure + Rel. Humidity

Times in Eastern Standard Time (EST = GMT-5)

(To see this page's template code, please Click Here.)

   LIVE OBSERVATIONS at CTO Weather Centre - Wednesday, December 10, 2025 at 13:49 EST
   TODAY:

   Wednesday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Current Barometric Pressure:

               

   Maximum Today:

00:04     2022      

   Minimum:

13:29           2019

   Mean:

  2022 2017
 

   Current Relative Humidity:

89 %   91 %                

   Maximum Today:

90 % 03:44 93 %     100 % 2023      

   Minimum:

88 % 00:04 88 %           20 % 2013

   Mean:

89 %   90 % 65 % 96 % 2024 20 % 2013
 

   YESTERDAY:

   Tuesday

   Reading

   Time

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Maximum Barometric Pressure:

00:04   2022      

   Minimum:

23:29           2019

   Mean:

   mb 2022 2020
 

   Maximum Relative Humidity:

89 % 22:29 89 %     94 % 2019      

   Minimum:

73 % 13:54 77 %           20 % 2013

   Mean:

81 %   83 % 61 % 84 % 2020 20 % 2013
 

   TOMORROW:

   Thursday

         

   Normal

   RecHi

   YY

   RecLo

   YY

   Barometric Pressure:

              2022 2021

   Daily Mean BP:

           mb 2022 2014
 

   Relative Humidity:

              100 % 2023 20 % 2013

   Daily Mean RH:

          60 % 96 % 2024 20 % 2013
 

   THIS MONTH:

   Dec Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Monthly Mean BP:

 mb 2023 2016
 

   Monthly Mean RH:

75 % 76 % % 78 % 2018 23 % 2013
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

01 09 2022-14 2022-23

   Daily Mean BP:

08 06 2022-14 2022-24
 

   Relative Humidity:

92 % 03 39 % 04 100 % 2022-30 0 % 2020-21

   Daily Mean RH:

86 % 03 64 % 04 100 % 2022-31 20 % 2013-01
 

   LAST MONTH:

   Nov Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

 mb 2012 2025
 

   Mean Relative Humidity:

80 % 80 % 61 % 80 % 2025 37 % 2013
 

   Daily Extremes + Records

   Max

   DD

   Min

   DD

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

29 16 2022-07 2022-20

   Daily Mean BP:

29 16 2022-07 2022-18
 

   Relative Humidity:

99 % 07 37 % 04 100 % 2024-05 1 % 2018-16

   Daily Mean RH:

92 % 20 60 % 04 93 % 2017-02 10 % 2013-28
 

   NEXT MONTH:

   January Monthly Records

     Normal

   RecHi

   YY

   RecLo

   YY

   Mean Barometric Pressure:

   mb 2020 2017
 

   Mean Relative Humidity:

  60 % 83 % 2023 35 % 2014
 

   January Daily Records

 

   RecHi

   YY-DD

   RecLo

   YY-DD

   Barometric Pressure:

  2020-09 2024-10

   Daily Mean BP:

  2020-09 2013-20
 

   Relative Humidity:

  100 % 2023-01 1 % 2019-01

   Daily Mean RH:

  100 % 2023-01 16 % 2014-24
 

   THIS YEAR:

   2025 Means + Records

   Mean

   Airport

   Normal

   RecHi

   YY

   RecLo

   YY

   Annual Mean BP:

 mb 2013 2012
 

   Annual Mean RH:

66 % 72 % 61 % 70 % 2018 54 % 2013
 

   Monthly Extremes + Records

   Max

   MM

   Min

   MM

   RecHi

   YY-MM

   RecLo

   YY-MM

   Monthly Mean BP:

Oct Mar 2023-May 2018-Jul
 

   Monthly Mean RH:

80 % Nov 59 % Aug 83 % 2023-Jan 22 % 2017-Apr
 

   Daily Extremes + Records

   Max

   MM-DD

   Min

   MM-DD

   RecHi

   Date

   RecLo

   Date

   Barometric Pressure:

Feb-02 Mar-06 2023-05-26 2021-08-10

   Daily Mean BP:

Feb-02 Mar-06 2023-05-26 2021-08-10
 

   Relative Humidity:

99 % Mar-04 14 % Oct-24 100 % 2021-06-13 0 % 2019-06-16

   Daily Mean RH:

94 % Oct-31 38 % May-11 100 % 2022-12-31 1 % 2017-03-27
 

   LAST YEAR:

   2024 Means

   Mean

   Airport

   Normal

   Annual Mean BP:

 mb
 

   Annual Mean RH:

68 % 77 % 61 %

   Monthly Extremes

   Max

   MM

   Min

   MM

   Monthly Mean BP:

Dec Jun
 

   Monthly Mean RH:

79 % Jan 58 % Mar

   Daily Extremes

   Max

   MM-DD

   Min

   MM-DD

   Barometric Pressure:

Dec-14 Jan-10

   Daily Mean BP:

Dec-14 Jan-10
 

   Relative Humidity:

100 % Jan-11 6 % Oct-20

   Daily Mean RH:

100 % Jan-27 31 % Apr-10
This page was last regenerated 2025-12-10@13:50.
It is sheduled to be regenerated whenever there are new data; approximately every five minutes.
(To see this page's template code, please Click Here).

 

BP - Live - Today:
 

RH - Live - Today:
 

BP - Live - Past 24 Hours:
 

RH - Live - Past 24 Hours:
 

BP - Live - Yesterday:
 

RH - Live - Yesterday:
 

BP - Live - Past 7 Days:
 

RH - Live - Past 7 Days: